Bathtub



FIG. 1 is a perspective view of a bathtub showing my new design;

FIG. 2 is a perspective view thereof taken from the side opposite to that shown in FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left end elevation view thereof;

FIG. 6 is a right end elevation view thereof;

FIG. 7 is a perspective view of a bathtub showing a second embodiment of my new design;

FIG. 8 is a perspective view of FIG. 7 taken from the side opposite to that shown therein;

FIG. 9 is a top plan view of FIG. 7;

FIG. 10 is a bottom plan view of FIG. 7;

FIG. 11 is a left end elevation view of FIG. 7;

FIG. 12 is a right end elevation view of FIG. 7;

FIG. 13 is an enlarged fragmentary perspective view of a portion of a bathtub showing a third embodiment of my new design which differs from the first embodiment only in the addition of a grab handle; and

FIG. 14 is a fragmentary perspective view taken from the rear of FIG. 13. 

The ornamental design for a bathtub, as shown and described. 